Real-time website change monitoring

Know the moment the web changes before it costs you.

DiffHook watches the pages, prices, policies and APIs your business depends on, and alerts the people or systems that need to act, the instant something changes.

Change detected on competitor pricing page · forwarded to Slack · 4.2 seconds end-to-end

Connects to the tools you already use

Over 10 million change events delivered to teams that can't afford to miss one.

Connects to the tools you already use

n8nMakeZapierSlackDiscordNotionAirtableLinearAny webhook URL

Why teams choose DiffHook

Every day something on the web changes, and someone on your team finds out too late.

Silent changes on the web become silent costs in your business. DiffHook turns them into first-class events you can see, measure, and act on.

  • Lost revenue

    A competitor cuts prices on Monday. Your sales team hears about it on Friday, after deals have slipped and win-rates have moved.

  • Compliance exposure

    A regulator updates a rule. Your team scrambles to react, risking fines, failed audits, and last-minute workflow rewrites.

  • Operational blind spots

    A vendor's status page quietly degrades. Your on-call hears about it from customer tickets, not from any alert you own.

How it works

One place to watch the web. One trigger for every system downstream.

A simple pipeline your whole team can trust, no matter who owns the workflow at the other end.

Watch anything that matters

Any page, any feed, any API. Track a full site or zoom in on a single element. A price, a policy clause, a status badge, an availability flag.

Alert only on signal

Smart filters cut through layout changes and cosmetic noise, so every alert is meaningful and none are wasted.

Route it anywhere

Send changes to Slack, Notion, your helpdesk, your CRM, or any workflow tool. No code for common jobs, full API when you need it.

Trust it at scale

Signed, reliable delivery with automatic retries. Complete change history. SSO, role-based access, and EU hosting on request.

What you can do with DiffHook

Turn every web change into the action your business needs.

Six outcomes customers hire us for, and dozens more they build themselves.

01

Never miss a competitor price move

Catch pricing and packaging changes within minutes. Push straight to Slack, your CRM, or your weekly revenue review.

02

Stay ahead of regulatory updates

Policies, filings, and compliance portals tracked continuously and summarised for your legal and risk teams.

03

Know before your customers do

Monitor vendor status pages, certifications, and SLAs. Alert on-call before the first support ticket lands.

04

Close deals with live intelligence

Track prospect hiring, funding, and product launches. Trigger outbound the moment an account shows a real buying signal.

05

Protect your brand and content

Spot unauthorised claims, copied content, or brand mentions the instant they surface, and route them to the right team.

06

Replace brittle in-house scrapers

Swap home-grown monitoring scripts for reliable, observable infrastructure your team can trust and your auditors will approve.

See it in action

From quiet web change to actionable alert, in seconds.

Three steps. No infrastructure to run. No maintenance window to schedule.

  1. 1

    Pick a page to watch

    Point DiffHook at any URL. Watch the full page, or a single element like a price, a clause, or a status label.

  2. 2

    We detect every change that matters

    Smart comparison filters out cosmetic noise and surfaces only the changes your team actually needs to act on.

  3. 3

    Your systems get notified

    A structured alert lands in Slack, your CRM, or any workflow tool. Instantly, reliably, with a full audit trail.

Pricing

Simple pricing that grows with your watch list.

Start free. Upgrade when you need more monitors or faster checks.

No credits to burn. No per-check billing. No surprise overages. Change plans any time.

Free
$0/ month

5 monitors · daily checks · community support

Most popular
Starter
$12/ month

50 monitors · 5-minute checks · email support

Pro
$29/ month

500 monitors · 1-minute checks · priority support

Frequently asked

Answers to the questions teams ask before they sign up.

How reliable is delivery?

Every alert is retried automatically with exponential backoff, signed to prove authenticity, and kept in a full delivery log. If your endpoint is temporarily down, nothing is lost. We'll keep trying until it's back.

Is my data safe?

All traffic is encrypted in transit. We store only what's needed to detect change. Our practices follow SOC 2 guidance, and EU-only hosting is available on request for regulated customers.

How fast can I get started?

Most teams have their first monitor running in under five minutes. No engineer required for common workflows, and developers get a full REST API the moment they want it.

How does pricing work?

Flat monthly plans based on how many monitors you run and how often they check. No credits to burn, no per-check metering, no surprise overages.

Can I run DiffHook on my own infrastructure?

Yes. Enterprise customers can opt into private cloud, single-tenant, or on-prem deployments. Contact us to scope it.

Stop finding out late

Start watching the web like you watch your product.

Your first monitor runs in two minutes. Free forever. No credit card required.